I have already started doing this. I use my phone for calling people, listening to music, reading books, and directions when I'm lost. I have given up Facebook. Twitter. Gmail. Google. And a bunch more besides. I hadn't realized how much the Google/Gmail ecosystem was affecting me, how it fed me news based on links and news based on what I'd clicked, and how that affected me. Since I have given these things, particularly the Google filter bubble, up, I am calmer and happier.
That's not to say that I am perfect, or perfectly calm, or anything like that. But I am significantly better than I was a year ago.